CN212708803U - Air bag assembly for air suspension and air suspension control system - Google Patents
Air bag assembly for air suspension and air suspension control system Download PDFInfo
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- CN212708803U CN212708803U CN202021125873.2U CN202021125873U CN212708803U CN 212708803 U CN212708803 U CN 212708803U CN 202021125873 U CN202021125873 U CN 202021125873U CN 212708803 U CN212708803 U CN 212708803U
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Abstract
The utility model provides an gasbag assembly and air suspension control system for air suspension belongs to the air suspension field. This gasbag assembly includes: from inside to outside in proper order the piston inner tube subassembly, piston urceolus and the capsule skin subassembly of establishing of cover, form the second cavity between first cavity, piston urceolus and the piston inner tube subassembly between capsule skin subassembly and the piston urceolus, wherein, piston inner tube subassembly includes: the piston inner cylinder is internally provided with a cavity, and the cylinder wall of the piston inner cylinder is provided with at least one first through hole for communicating the cavity with the second cavity; the sealing plate is provided with a second through hole, is arranged in the cavity and is used for dividing the cavity into a third cavity comprising the first through hole and a fourth cavity not comprising the first through hole; and the plug is used for controllably plugging or opening the second through hole. The utility model discloses an its internal volume can be adjusted to the gasbag assembly, and corresponding air suspension control system can adjust the rigidity of gasbag assembly according to vehicle load.
Description
Technical Field
The utility model relates to an air suspension field especially relates to an gasbag assembly and air suspension control system for air suspension.
Background
In existing air suspension control systems, height sensors are important. The ECU sends an instruction to the second electromagnetic valve by depending on the angle signal changed by the height sensor, so that the air bag is controlled to lift. At present, the second solenoid valve industry in China is mature, the low-end chip required by the ECU can also be solved, but the technical patent of the height sensor is always monopolized by two manufacturers, namely Weiberke and Kenuole, and the reliability of the products is far superior to that of the products of other manufacturers.
The vibration frequency of the vehicle body is one of important evaluation indexes of the comfort of the whole vehicle, and the higher the vibration frequency of the vehicle body is, the worse the comfort is. The vibration frequency of the vehicle body and the rigidity of the air spring are inversely proportional to the internal air pressure of the air bag assembly, and the greater the internal air pressure of the air bag assembly is, the greater the vibration frequency of the vehicle body and the rigidity of the air spring are, and the poorer the comfort is. The vibration frequency of the vehicle body and the rigidity of the air spring are inversely proportional to the volume of air in the airbag assembly, and the larger the volume of air in the airbag assembly is, the smaller the vibration frequency of the vehicle body and the rigidity of the air spring are, and the better the comfort is.
The existing air suspension is generally designed according to full-load matching, and the rigidity of a full-load air spring is proper, but the rigidity of the full-load air spring is necessarily smaller. At the moment, the suspension is soft, so that the phenomena of large vibration amplitude of the vehicle body, serious braking nod and the like can occur.
SUMMERY OF THE UTILITY MODEL
It is an object of a first aspect of the present invention to provide an air bag assembly for an air suspension that can adjust its internal volume.
The utility model discloses a further an aim is to avoid foreign patent monopoly to have improved simultaneously and detected the precision, reduce occupation space and reduce cost.
It is an object of the second aspect of the present invention to provide an air suspension control system capable of adjusting the rigidity of an air bag assembly in accordance with the load of a vehicle.
In particular, the present invention provides an air bag assembly for an air suspension comprising:
from inside to outside in proper order the cover piston inner tube subassembly, piston urceolus and the capsule skin subassembly of establishing, the capsule skin subassembly with form first cavity between the piston urceolus with form the second cavity between the piston inner tube subassembly, wherein, the piston inner tube subassembly includes:
the inner piston cylinder is internally provided with a cavity, and the cylinder wall of the inner piston cylinder is provided with at least one first through hole for communicating the cavity with the second cavity;
the sealing plate is provided with a second through hole, is arranged in the cavity and is used for dividing the cavity into a third cavity comprising the first through hole and a fourth cavity not comprising the first through hole;
and the plug is used for controllably plugging or opening the second through hole so as to control the total volume of the airbag assembly when the plug plugs the second through hole to be the sum of the first cavity, the second cavity and the third cavity and the total volume of the airbag assembly when the plug opens the second through hole to be the sum of the first cavity, the second cavity, the third cavity and the fourth cavity.
Optionally, the piston inner barrel comprises:
the piston inner cylinder main body is cylindrical, and the limiting plates and the piston bottom plate are respectively covered at the top end and the bottom end of the piston inner cylinder main body.
Optionally, the airbag assembly further comprises:
and the laser range finder is arranged at the position of the capsule skin assembly and used for acquiring the height information of the air bag assembly.
Optionally, the capsule skin assembly comprises:
the piston outer cylinder is provided with a first cavity, the first cavity is defined by the upper cover plate assembly, the capsule skin and the piston outer cylinder.
Optionally, the upper cover plate assembly comprises:
an upper cover plate;
the inflating valve is arranged at the upper cover plate and is used for communicating the first cavity with the outside;
and the limiting block is positioned on one side of the upper cover plate facing the limiting plate and is at least partially aligned with the limiting plate.
Optionally, the limiting plate, the laser range finder and the limiting plate are all aligned.
Optionally, the piston inner cylinder body is provided with a plurality of first through holes uniformly distributed along the circumferential direction of the piston inner cylinder body.
Optionally, the plug is connected to a motor.
Optionally, the airbag assembly further comprises:
the air storage cylinder is connected with the first cavity through a large-diameter air pipe, the first electromagnetic valve is arranged on the large-diameter air pipe and used for controlling the on-off of the large-diameter air pipe, and then the fifth cavity is communicated with and separated from the first cavity.
Particularly, the utility model also provides an air suspension control system, including air supply, gas receiver, second solenoid valve, four-way connection, pressure sensor, controller and above-mentioned arbitrary gasbag assembly; wherein the content of the first and second substances,
the four-way connector is provided with a first interface, a second interface, a third interface and a fourth interface, the first interface is communicated with the first cavity of the air bag assembly, the second interface is connected with the pressure sensor, the third interface is connected with the air cylinder through a first air pipe, the first air pipe is provided with the second electromagnetic valve, the fourth interface is connected with the air source through a second air pipe, and the second air pipe is provided with the second electromagnetic valve;
the gas source is used for providing gas;
a sixth cavity for containing gas is arranged in the gas storage cylinder;
the second electromagnetic valve is used for controlling the on-off of the first air pipe and the second air pipe;
the pressure sensor is used for collecting a pressure value in the air bag assembly;
the second electromagnetic valve, the pressure sensor and the driving device of the air bag assembly are in communication connection with the controller, and the controller is used for controlling the output of the driving device and the on-off of the second electromagnetic valve according to the pressure value acquired by the pressure sensor so as to control the total volume of the air bag assembly.
The utility model discloses an gasbag assembly of this embodiment regards the end cap as the case, controls the break-make of third cavity and fourth cavity through the position of control end cap to the total volume of control gasbag assembly. Because the rigidity of the airbag assembly is in inverse proportion to the volume of the airbag assembly, and the frequency of the airbag assembly is in inverse proportion to the square root of the volume of the airbag assembly, the rigidity and the frequency of the airbag can be adjusted by adjusting the volume of the airbag assembly in real time according to the actual load of a vehicle, and the suspension performance is improved.
Further, the utility model discloses an gasbag assembly still includes laser range finder, sets up in capsule skin subassembly department for gather the height information of gasbag assembly. The utility model uses the laser range finder to replace the height sensor in the prior art, thereby avoiding the monopoly of foreign patents, having simple use and maintenance and not needing to calibrate the vehicle; meanwhile, the detection precision is improved, the occupied space is reduced, and the cost is reduced.
Further, the air bag assembly also comprises a first electromagnetic valve and an air storage cylinder, wherein a fifth cavity is arranged in the air storage cylinder. The on-off of the fifth cavity and the first cavity can be controlled by controlling the switch of the first electromagnetic valve, and the whole airbag assembly can have various volume changes by combining the fourth cavity capable of controlling the on-off. The change of more volumes can be suitable for more actual loads of vehicles, the volume of the air bag assembly can be adjusted in real time, and the suspension performance can be improved better.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a cross-sectional view of an air bag assembly for an air suspension according to an embodiment of the present invention;
fig. 2 is an exploded view of an air bag assembly for an air suspension according to one embodiment of the present invention;
fig. 3 is a schematic structural view of an inner piston barrel assembly of an air bag assembly for an air suspension according to another embodiment of the present invention;
FIG. 4 is a schematic view of the connection of an air bag assembly for an air suspension according to one embodiment of the present invention;
fig. 5 is a schematic connection diagram of an air suspension control system according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a cross-sectional view of an air bag assembly 100 for an air suspension according to an embodiment of the present invention. Fig. 2 is an exploded view of an air bag assembly 100 for an air suspension according to an embodiment of the present invention. Referring to fig. 1 and also fig. 2, an airbag assembly 100 for an air suspension according to an embodiment of the present invention includes an inner piston cylinder assembly 10, an outer piston cylinder 20, and a bladder skin assembly 30, which are sequentially sleeved from inside to outside. A first cavity 101 is formed between the capsule assembly 30 and the piston outer cylinder 20, and a second cavity 102 is formed between the piston outer cylinder 20 and the piston inner cylinder assembly 10. The piston inner cylinder assembly 10 comprises a piston inner cylinder 11, a sealing plate 12 and a plug 13. The inner cylinder 11 has a cavity therein, and at least one first through hole 111 for communicating the cavity with the second cavity 102 is formed on the cylinder wall. The sealing plate 12 is provided with a second through hole 121 and disposed in the cavity for dividing the cavity into a third cavity 103 including the first through hole 111 and a fourth cavity 104 not including the first through hole 111. The plug 13 controllably plugs or opens the second through hole 121, for example, the plug 13 is connected to the motor 50 outputting linear displacement, so as to control the total volume of the airbag assembly 100 when the plug 13 plugs the second through hole 121 to be the sum of the first cavity 101, the second cavity 102 and the third cavity 103, and when the plug 13 opens the second through hole 121 to be the sum of the first cavity 101, the second cavity 102, the third cavity 103 and the fourth cavity 104.
In the airbag assembly 100 of the present embodiment, the plug 13 is used as a valve core, and the position of the plug 13 is controlled to control the on/off of the third cavity 103 and the fourth cavity 104, so as to control the total volume of the airbag assembly 100. Since the stiffness of the airbag assembly 100 is inversely proportional to the volume of the airbag assembly 100 and the frequency of the airbag assembly 100 is inversely proportional to the square root of the volume of the airbag assembly 100, the volume of the airbag assembly 100 can be adjusted in real time according to the actual load of the vehicle to adjust the stiffness and the frequency of the airbag, thereby improving the suspension performance.
As shown in fig. 1, in some embodiments of the present invention, the piston inner cylinder 11 includes a cylindrical piston inner cylinder main body 112, and a limiting plate 113 and a piston bottom plate 114 respectively covering the top end and the bottom end of the piston inner cylinder main body 112, and the limiting plate 113, the piston inner cylinder main body 112 and the piston bottom plate 114 together define a cavity inside the piston inner cylinder 11.
Fig. 3 is a schematic structural diagram of the piston inner tube assembly 10 of the airbag assembly 100 for an air suspension according to another embodiment of the present invention. As shown in fig. 3, in one embodiment, the piston inner cylinder body 112 is provided with a plurality of first through holes 111 uniformly distributed along a circumferential direction thereof. The arrangement of the first through holes 111 can make the gas flow uniformly between the first cavity 101 and the second cavity 102102, so that the gas flow in each direction is substantially the same, and the stability of the gas flow in the airbag assembly 100 is maintained.
As shown in fig. 1, in one embodiment, the airbag assembly 100 of the present invention further includes a laser range finder 40 disposed at the bladder skin assembly 30 for collecting height information of the airbag assembly 100.
In the embodiment, the laser range finder 40 is used for replacing a height sensor in the prior art, so that the monopoly of foreign patents is avoided, the use and the maintenance are simple, and the vehicle calibration is not required; meanwhile, the detection precision is improved, the occupied space is reduced, and the cost is reduced.
In practical application, the laser range finder 40 detects the height change of the airbag assembly 100 in real time, and transmits a signal to the controller through an electric appliance wire harness, and the controller sends an instruction to the electromagnetic valve through analysis and judgment. When the height of the frame is greater than the Nominal height, the distance detected by the laser range finder 40 is increased, a corresponding signal is transmitted to the controller, and the controller judges that the airbag assembly 100 is in a pulling-up state, so as to control the airbag to exhaust; when the frame is lower than or equal to the Nominal Level, the detection distance of the laser range finder 40 is reduced, a corresponding signal is transmitted to the controller, and the controller judges that the airbag assembly 100 is in a compressed state, so that the airbag is controlled to be inflated. The laser range finder 40 is used for replacing the traditional height sensor, foreign patent monopoly can be avoided, and meanwhile, the detection precision is improved, the occupied space is reduced, and the cost is reduced.
As shown in fig. 1, further, the capsule assembly 30 includes a capsule 31 and an upper cover plate 321 assembly 32 located on top of the capsule 31, the upper cover plate 321 assembly 32, the capsule 31 and the plunger outer cylinder 20 together defining the first cavity 101.
As shown in FIG. 1, in one embodiment, the upper plate 321 assembly 32 includes an upper plate 321, a valve 322, and a stop 323. The valve 322 is disposed at the upper cover plate 321 for communicating the first cavity 101 with the outside. The limiting block 323 is located on a side of the upper cover 321 facing the limiting plate 113 and is at least partially aligned with the limiting plate 113. The limiting block 323 is matched with the limiting plate 113 and used for limiting the movement limit position of the piston inner cylinder main body 112.
In another embodiment, the limiting plate 113, the laser range finder 40 and the limiting plate 113 are aligned, for example, centered on the axial direction of the piston inner cylinder body 112.
Fig. 4 is a schematic connection diagram of an airbag assembly 100 for an air suspension according to an embodiment of the present invention. As shown in fig. 4, in some embodiments of the present invention, the airbag assembly 100 further includes a first solenoid valve 60 and an air reservoir 70 having a fifth cavity 105 therein. The air reservoir 70 is connected with the first cavity 101 through the large-diameter air pipe 80, the large-diameter air pipe 80 is provided with a first electromagnetic valve 60, and the first electromagnetic valve 60 is used for controlling the on-off of the large-diameter air pipe 80 and further controlling the communication and the isolation of the fifth cavity 105 and the first cavity 101.
The on/off of the fifth cavity 105 and the first cavity 101 can be controlled by controlling the on/off of the first solenoid valve 60, and in combination with the on/off controllable fourth cavity 104 in the above embodiment, the whole airbag assembly 100 can have various volume changes. By controlling the volume of each chamber and the working states of the first solenoid valve 60 and the motor 50, the airbag assembly 100 can be formed to have the following volumes: the total volume is equal to the sum of the volumes of the first cavity 101, the second cavity 102 and the third cavity 103, the total volume is equal to the sum of the volumes of the first cavity 101, the second cavity 102, the third cavity 103 and the fourth cavity 104, the total volume is equal to the sum of the volumes of the first cavity 101, the second cavity 102, the third cavity 103 and the fifth cavity 105, and the total volume is equal to the sum of the volumes of the first cavity 101, the second cavity 102, the third cavity 103, the fourth cavity 104 and the fifth cavity 105. This more volume change makes it can be applicable to more actual bears of vehicle, adjusts the volume of air bag assembly 100 in real time, promotes the suspension performance better.
Fig. 5 is a schematic connection diagram of an air suspension control system according to an embodiment of the present invention. As shown in fig. 5, the present invention also provides an air suspension control system, which may generally include an air source 1, an air reservoir 70, a second solenoid valve 2, a four-way joint 3, a pressure sensor 4, a controller 5, and an airbag assembly 100 of any one of the above. The four-way connector 3 is provided with a first interface, a second interface, a third interface and a fourth interface, the first interface is communicated with a first cavity 101 of the airbag assembly 100, the second interface is connected with the pressure sensor 4, the third interface is connected with the air storage cylinder 70 through a first air pipe 81, a second electromagnetic valve 2 is arranged on the first air pipe 81, the fourth interface is connected with an air source 1 through a second air pipe 82, and a second electromagnetic valve 2 is arranged on the second air pipe 82. The gas source 1 is used to provide gas. A sixth cavity for accommodating gas is provided in the gas cylinder 70. The second electromagnetic valve 2 is used for controlling the on-off of the first air pipe 81 and the second air pipe 82. The pressure sensor 4 is used to collect pressure values within the airbag assembly 100. The second electromagnetic valve 2, the pressure sensor 4 and the driving device of the air bag assembly 100 are in communication connection with the controller 5, and the controller 5 is used for controlling the output of the driving device and the on-off of the second electromagnetic valve 2 according to the pressure value collected by the pressure sensor 4 so as to control the total volume of the air bag assembly 100.
The embodiment provides a specific application of the airbag assembly 100, the connected air suspension control system judges the load condition of the vehicle through the pressure value of the pressure sensor 4, further adjusts the total volume of the airbag assembly 100 according to the pressure value of the pressure sensor 4, and adjusts the stiffness and frequency of the airbag through adjusting the volume of the airbag assembly 100 in real time, so as to improve the suspension performance.
Optionally, the air suspension control system is controlled by:
step S10: collecting a pressure value in the airbag assembly 100;
step S20: and controlling the output of the driving device and the on-off of the second electromagnetic valve 2 according to the pressure value, and further controlling the total volume of the air bag assembly 100. The driving device here refers to the driving part connected to the stopper 13.
When the load of the vehicle changes, the pressure value in the airbag assembly 100 also changes, the load of the vehicle increases, the pressure value of the airbag assembly 100 increases, the load of the vehicle decreases, and the corresponding pressure value also decreases. The working states of the driving device and the second solenoid valve 2 are controlled by detecting the pressure value in the airbag assembly 100, and the total volume in the airbag assembly 100 is actually controlled according to the load of the vehicle, so that the rigidity and the frequency of the airbag are adjusted, and the suspension performance is improved.
In another embodiment, step S20 includes:
step S21: when the pressure value is continuously higher than the first threshold value and exceeds a first preset time, the driving device is controlled to drive the plug 13 to move to the position communicated with the second through hole 121, and the second electromagnetic valve 2 is controlled to be communicated with the first air pipe 81, so that the total volume of the air bag assembly 100 is equal to the sum of the volumes of the first cavity 101, the second cavity 102, the third cavity 103, the fourth cavity 104 and the fifth cavity 105, and the first threshold value is the corresponding air bag internal pressure when the vehicle is fully loaded.
That is to say, when the pressure value shows that the vehicle is continuously fully loaded or overloaded, the five cavities are controlled to be communicated, so that the total volume of the airbag assembly 100 reaches the maximum, the rigidity of the airbag is reduced, and the comfort is good.
In another embodiment, step S20 further includes:
step S22: when the pressure value continuously exceeds a second time threshold value between a second threshold value and the first threshold value, the driving device is controlled to drive the plug 13 to move to a position communicated with the second through hole 121, and the second electromagnetic valve 2 is controlled to disconnect the first air pipe 81, so that the total volume of the air bag assembly 100 is equal to the sum of the volumes of the first cavity 101, the second cavity 102, the third cavity 103 and the fourth cavity 104, and the second threshold value is the corresponding air bag internal pressure when the vehicle is in half load.
The embodiment shows that the pressure value shows that the load of the vehicle is reduced, the fifth cavity 105 is controlled to be disconnected, the total volume is reduced, the rigidity of the air bag is increased, and the comfort and the smoothness of the vehicle are guaranteed.
In another embodiment, step S20 further includes:
step S23: when the pressure value continuously exceeds a third time threshold value between a third threshold value and a second threshold value, the driving device is controlled to drive the plug 13 to move to a position for plugging the second through hole 121, and the second electromagnetic valve 2 is controlled to disconnect the first air pipe 81, so that the total volume of the air bag assembly 100 is equal to the sum of the volumes of the first cavity 101, the second cavity 102 and the third cavity 103, and the third threshold value is the corresponding air bag internal pressure when the vehicle is unloaded.
This embodiment shows that at the pressure values it is indicated that the vehicle load continues to decrease and the airbag stiffness also decreases synchronously. If the controller 5 determines that the pressure in the airbag is continuously within the range from the third threshold to the second threshold within a period of time, the controller 5 sends a control signal to the motor 50, and the motor 50 drives the plug 13 to rise, so that the fourth cavity 104 is isolated from the third cavity 103. The total volume of the airbag assembly 100 is continuously reduced, the rigidity of the airbag is increased, and the comfort and the smoothness of the vehicle are ensured.
The specific values of the first threshold, the second threshold and the third threshold are different according to different values of the vehicle. The first time threshold, the second time threshold and the third time threshold may be the same or different, and the specific values may be set according to specific situations, for example, any value from 2min to 5 min.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An air bag assembly for an air suspension comprising:
from inside to outside in proper order the cover piston inner tube subassembly, piston urceolus and the capsule skin subassembly of establishing, the capsule skin subassembly with form first cavity between the piston urceolus with form the second cavity between the piston inner tube subassembly, wherein, the piston inner tube subassembly includes:
the inner piston cylinder is internally provided with a cavity, and the cylinder wall of the inner piston cylinder is provided with at least one first through hole for communicating the cavity with the second cavity;
the sealing plate is provided with a second through hole, is arranged in the cavity and is used for dividing the cavity into a third cavity comprising the first through hole and a fourth cavity not comprising the first through hole;
and the plug is used for controllably plugging or opening the second through hole so as to control the total volume of the airbag assembly when the plug plugs the second through hole to be the sum of the first cavity, the second cavity and the third cavity and the total volume of the airbag assembly when the plug opens the second through hole to be the sum of the first cavity, the second cavity, the third cavity and the fourth cavity.
2. The air bag assembly for an air suspension of claim 1 wherein said piston inner barrel comprises:
the piston inner cylinder main body is cylindrical, and the limiting plates and the piston bottom plate are respectively covered at the top end and the bottom end of the piston inner cylinder main body.
3. The air bag assembly for an air suspension according to claim 2, further comprising:
and the laser range finder is arranged at the position of the capsule skin assembly and used for acquiring the height information of the air bag assembly.
4. The air bag assembly for an air suspension of claim 3 wherein said bladder skin assembly comprises:
the piston outer cylinder is provided with a first cavity, the first cavity is defined by the upper cover plate assembly, the capsule skin and the piston outer cylinder.
5. The air bag assembly for an air suspension of claim 4 wherein said upper cover plate assembly includes:
an upper cover plate;
the inflating valve is arranged at the upper cover plate and is used for communicating the first cavity with the outside;
and the limiting block is positioned on one side of the upper cover plate facing the limiting plate and is at least partially aligned with the limiting plate.
6. The air bag assembly for an air suspension according to claim 5,
the limiting plate, the laser range finder and the limiting plate are all arranged in an aligned mode.
7. The air bag assembly for an air suspension according to claim 1,
the piston inner cylinder main part is equipped with a plurality of along its circumference evenly distributed the first through-hole.
8. The air bag assembly for an air suspension according to claim 1,
the plug is connected with the motor.
9. An air bag assembly for an air suspension according to any one of claims 1-8 further including:
the air storage cylinder is connected with the first cavity through a large-diameter air pipe, the first electromagnetic valve is arranged on the large-diameter air pipe and used for controlling the on-off of the large-diameter air pipe, and then the fifth cavity is communicated with and separated from the first cavity.
10. An air suspension control system comprising an air supply, an air reservoir, a second solenoid valve, a four-way junction, a pressure sensor, a controller and an air bag assembly according to any one of claims 1 to 9; wherein the content of the first and second substances,
the four-way connector is provided with a first interface, a second interface, a third interface and a fourth interface, the first interface is communicated with the first cavity of the air bag assembly, the second interface is connected with the pressure sensor, the third interface is connected with the air cylinder through a first air pipe, the first air pipe is provided with the second electromagnetic valve, the fourth interface is connected with the air source through a second air pipe, and the second air pipe is provided with the second electromagnetic valve;
the gas source is used for providing gas;
a sixth cavity for containing gas is arranged in the gas storage cylinder;
the second electromagnetic valve is used for controlling the on-off of the first air pipe and the second air pipe;
the pressure sensor is used for collecting a pressure value in the air bag assembly;
the second electromagnetic valve, the pressure sensor and the driving device of the air bag assembly are in communication connection with the controller, the controller is used for controlling the output of the driving device and the on-off of the second electromagnetic valve according to the pressure value acquired by the pressure sensor so as to control the total volume of the air bag assembly, and the driving device is a driving part connected with the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021125873.2U CN212708803U (en) | 2020-06-17 | 2020-06-17 | Air bag assembly for air suspension and air suspension control system |
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| CN202021125873.2U CN212708803U (en) | 2020-06-17 | 2020-06-17 | Air bag assembly for air suspension and air suspension control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063610A (en) * | 2021-05-12 | 2021-07-02 | 中国第一汽车股份有限公司 | Control method of air suspension |
| CN114851213A (en) * | 2022-03-04 | 2022-08-05 | 清华大学 | Membrane type joint of mobile robot, robot and multi-machine cooperation carrying system |
-
2020
- 2020-06-17 CN CN202021125873.2U patent/CN212708803U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113063610A (en) * | 2021-05-12 | 2021-07-02 | 中国第一汽车股份有限公司 | Control method of air suspension |
| CN113063610B (en) * | 2021-05-12 | 2022-10-28 | 中国第一汽车股份有限公司 | Control method of air suspension |
| CN114851213A (en) * | 2022-03-04 | 2022-08-05 | 清华大学 | Membrane type joint of mobile robot, robot and multi-machine cooperation carrying system |
| CN114851213B (en) * | 2022-03-04 | 2023-10-31 | 清华大学 | Membrane type joint of mobile robot, robot and multi-machine cooperation conveying system |
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